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Simple time counter tracker


Dead simple count down or count up timer for node and in browser using clientmodules or browserify.

For a standalone version that bundles required modules just use time-counter.bundled.js.

This isn't meant to be scientifically amazingly perfect. Because we're just looping and comparing with a start time at a set interval. This approach is a bit flawed because it's impacted by the event loop, etc. But it's good enough for the vast majority of regular web app uses.

npm install time-counter
// creating a count up timer 
var Timer = require('time-counter'),
    log = console.log.bind(console);
var countUpTimer = new Timer();
// log out time, could also be used to  
// write to DOM of course. 
countUpTimer.on('change', log);
// start it 
// creating a countdown timer 
var countDown = new Timer({
    direction: 'down', 
    startValue: '1:00' // one minute  
// log it out every time it's updated 
countDown.on('change', log);
countDown.on('end', function () {

Default values shown:

    direction: 'up',  // can also be 'down' 
    startValue: 0, // starting point, useful for 'down' but works for up too 
    targetValue: '', // i.e. "1:00:00" is one hour, shoudl be in format: hours:minutes:seconds 
    interval: 50, // how fast to run the loop and determine if the time has changed  
    showHours: false // whether or not to show hours if they're empty 

To build bundled version run node build at project root.